<html>

<head>
    <meta charset="utf-8" />
    <title>Hello World</title>
    <style>
        body {
            display: flex;
            justify-content: center;
            align-items: center;
            height: 100vh;
        }
    </style>
</head>

<body>
    <h1>Hello World</h1>
</body>

</html>